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PhD Studentship - Cryogenic Power Electronics for Next Generation Superconducting Drivetrains

The University of Edinburgh

Qualification Type: PhD
Location: Edinburgh
Funding for: UK Students, EU Students, International Students
Funding amount: Not Specified
Hours: Full Time
Placed On: 1st July 2025
Closes: 30th September 2025

The Institute for Energy Systems at the School of Engineering of the University of Edinburgh is looking for enthusiastic, self-motivated applicants for an exciting PhD position that will research and develop advanced cryogenic power electronics solutions for key net-zero applications such as all-electric aviation and wind energy. This fully-funded PhD project will provide the opportunity to contribute to advancing disruptive technologies with high-potential impact for decarbonising energy systems, while developing industry-relevant skills in power conversion systems design, testing and validation.

Superconducting cryogenic powertrains represent a groundbreaking advancement in next-generation all-electric aviation, with the potential to reduce reliance on fossil fuels. Integrating power converters within cryogenic settings offers substantial benefits, as some semiconductor devices achieve step-change performance improvements at these temperatures. In particular, key potential performance improvements are higher power density and enhanced efficiency, which are two of the main challenges for electric aviation power converters.

The project will investigate power module design and advanced gate driving strategies using wide-bandgap semiconductors that show significant loss reduction at cryogenic temperatures. The research will address a range of critical challenges associated with implementing power converters using wide-bandgap semiconductor devices in cryogenic environments. Key specific challenges include optimising PCB layout to handle high current levels while minimizing power loop parasitic inductance, ensuring uniform current sharing among parallel devices, and developing effective thermal management solutions tailored for low-temperature operation. Additionally, the project will explore robust gate drive implementations capable of maintaining reliable switching performance under cryogenic thermal conditions. This project will involve a substantial amount of experimental work using the high-voltage and high-current test facilities at the University of Edinburgh.

The successful candidate will be based at the world leading Institute for Energy Systems (IES), benefiting from state-of-the-art equipment at the new IES laboratory focused on electrical power conversion for net-zero technologies. (Details available: eng.ed.ac.uk/about/news/20250130/offshore-renewables-lab-receives-ps2-million-grant). The PhD student will join the electrical power conversion team at Edinburgh, including other PhD students and post-doctoral researchers covering a broad range of themes related to power electronics and electrical machines. Funding is provided for three and a half years covering tuition fees, an enhanced rate stipend and research costs associated with the project.

Early application is advised as the position will be filled once a suitable candidate is identified.

Further information

Informal enquiries are welcomed and should be directed to Dr Sebastian Neira Castillo – s.neira@ed.ac.uk. Formal applications should always be via the online system of the University of Edinburgh.

Closing date: Tue, 30/09/2025 - 12:00

Principal Supervisor: Dr Sebastian Neira Castillo

Assistant Supervisor: Dr Paul Judge

Eligibility

Minimum entry qualification - an Honours degree at 2:1 or above (or International equivalent) in a relevant science or engineering discipline, possibly supported by an MSc Degree. Further information on English language requirements for EU/Overseas applicants.

Applicants should hold, or expect to receive, a First Class or high Upper Second-Class Honours degree (or the equivalent) in Electrical Engineering or a relevant discipline. A master’s level qualification in Power Electronics or/and Power Engineering would be advantageous.

Applicants are expected to demonstrate excellent problem-solving abilities for power electronics systems and proficiency in PCB design and implementation. Moreover, experience with finite element software, such as Ansys Maxwell or Q3D, and hands-on experience would be advantageous. Familiarity with mathematical modelling of power electronics circuits is also desirable.

Funding

Further information and other funding options.

Informal Enquiries: s.neira@ed.ac.uk

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